Ten diseases that cannot be cured nowadays

The common cold is an acute viral infection that starts in the upper respiratory tract, sometimes spreads to the lower structures, and may cause secondary infections in the eyes or middle ears. More than 100 agents cause the common cold, including parainfluenza, influenza, respiratory syncytial viruses, and reoviruses. Rhinoviruses, however, are the most frequent cause.

The popular term common cold reflects the feeling of chilliness on exposure to a cold environment that is part of the onset of symptoms. The feeling was originally believed to have a cause-and-effect relationship with the disease, but this is now known to be incorrect. The cold is caught from exposure to infected people, not from a cold environment, chilled wet feet, or drafts. People can carry the virus and communicate it without experiencing any of the symptoms themselves. Incubation is short — usually one to four days. The viruses start spreading from an infected person before the symptoms appear, and the spread reaches its peak during the symptomatic phase.

Source: listverse.com